2019-09-19 14:43:19 +00:00
|
|
|
From 561918ec5e668f9d940051737d861ee0592816f6 Mon Sep 17 00:00:00 2001
|
2019-07-09 18:32:28 +00:00
|
|
|
From: Eric Anholt <eric@anholt.net>
|
|
|
|
|
Date: Fri, 29 Mar 2019 12:04:36 -0700
|
2019-12-23 12:42:55 +00:00
|
|
|
Subject: [PATCH] drm/vc4: Make sure that vblank waits work without v3d
|
2019-07-09 18:32:28 +00:00
|
|
|
loaded.
|
|
|
|
|
|
|
|
|
|
This flag exists to protect legacy drivers, but when vc4's v3d doesn't
|
|
|
|
|
probe, it doesn't get set up by vc4_v3d.c's call of drm_irq_install.
|
|
|
|
|
This resulted in applications running as fast as possible, and laggy
|
|
|
|
|
performance from compton as it had to wait for the latest rendering by
|
|
|
|
|
the application for its presentation.
|
|
|
|
|
|
|
|
|
|
Signed-off-by: Eric Anholt <eric@anholt.net>
|
|
|
|
|
---
|
|
|
|
|
drivers/gpu/drm/vc4/vc4_kms.c | 1 +
|
|
|
|
|
1 file changed, 1 insertion(+)
|
|
|
|
|
|
|
|
|
|
--- a/drivers/gpu/drm/vc4/vc4_kms.c
|
|
|
|
|
+++ b/drivers/gpu/drm/vc4/vc4_kms.c
|
|
|
|
|
@@ -422,6 +422,7 @@ int vc4_kms_load(struct drm_device *dev)
|
|
|
|
|
/* Set support for vblank irq fast disable, before drm_vblank_init() */
|
|
|
|
|
dev->vblank_disable_immediate = true;
|
|
|
|
|
|
|
|
|
|
+ dev->irq_enabled = true;
|
|
|
|
|
ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
|
|
|
|
|
if (ret < 0) {
|
|
|
|
|
dev_err(dev->dev, "failed to initialize vblank\n");
|
